Ok, scenario is simple: S has HTF to one degree or another. You don’t have radio, cell, or other communication capability. You do have, however, a great spot for an Observation/Listening Post that’s very discreet, so long as people aren’t seen going to/from the location on a consistent basis. It’s also located too far away from your NPATOC (Neighborhood Protection Area Tactical Operations Center) to yell back and forth.
One solution could be to ‘go old school’ and get a few surplus TA 312 field phone sets. Good ones run about $85 with the case, and can be found with shipping/handling included.
Depending on how many your NPT needs, you may need a SB22 Swithboard, but those can be had in good working order, as well.
Yes, they’re heavy. Yes, you’ll need a head set. But here’s the thing: They’re damn near bomb proof.
If it’s just one post, you only need 2 phone sets and some USGI communications wire, also had fairly cheaply. I know of a guy who just picked up 2 clicks of new wire on a spool for $50 shipped. Lotta wire, not a lotta money. If you get a large 18 inch spool with a couple of clicks of wire, you’ll definitely want the smaller, empty, 8 inch reels and a RL 39-B wire machine handle so you can take a smaller amount of wire, re-spool it, and lay your wire to your OP/LP.
The pic above shows both the smaller, 8 inch reel with the reel machine. Trust me, if you get the large spool of wire for cheap, you’re going to want this. The larger machine for the 18 inch spools cost hundreds of dollars. Both of these together cost about $50 shipped.
Let’s say for a moment that your NPT needed 6 TA 312’s, a SB22, a head set, and 750 meters of wire. Here’s what it would cost in total, and then your NPT could split the cost of under a grand. 9 NPT members? Just over a hundred bucks each.